신소재공학과

Seminar

Date 20161213 

■ Topic : Measurements of thermoelectric properties of nanostructured materials
                   
■ Speaker : 12/13(Tue) Dr. Jae Yong Song (KRISS)

 

■ Invitation : Prof. Byungha Shin


■ Date & Time : Dec. 13 (Tue) 16:00


■ Venue : KAIST Applied Engineering B/D(W1), Multimedia Lecture Hall (1st Floor)


■ Abstract :

열전에너지 변환을 이용한 응용과 함께, 최근 열전소재의 성능향상을 위해 이루어지고 있는 연구동향을 소개함. 특히 나노기술을 이용한 열전소재 개발이 이루어지고 있는 가운데, 나노소재 (나노선, 나노쉬트)의 열전 물성 측정 방법이 많은 관심을 받고 있음. 마이크로디바이스를 이용해 열전물성 (제벡계수, 전기전도도, 열전도도)을 측정하는 원리 및 측정기술을 소개함. 예로서 나노선 (Bi2Te3, InAs) 및 나노쉬트(black phosphorus, SnS2)에 대한 열전물성 측정 결과를 보이고, 특히 온도와 두께에 따라 변화하는 열전물성을 이론적 해석과 함께 제시함.


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